According to Harvard Health Publications, a 15-year study showed that participants who received 25 percent or more of their daily calories from sugar were twice as likely to die of heart disease than participants whose diet included less than 10 percent extra sugar. Moderation is key for a healthy diet.
A diet that is high in sugar increases the risk of getting heart disease, and it may also increase the risk of dying, without even being overweight. Sugar-heavy diets also contribute greatly to cavities and weight gain, which can lead to many other health problems. The chances of dying from heart disease only increase as more sugar is added to the diet, which is the case regardless of sex, age, weight, body mass index or physical activity level.